来自生物质燃烧的树灰作为能源的部分替代砂在砂:一个可持续的替代品
Adilson M O Junior1, Marcelo Bortoletto1, João Cláudio Bassan de Moraes2
1Faculdade de Engenharia, Universidade Estadual Paulista (UNESP), Ilha Solteira, Brazil.
Environmental technology
|July 22, 2025
概括
树灰 (EA),重新分类为颗粒大小 (ERA),可以部分取代砂在砂. 高达30%ERA的砂显示出可比的强度和可持续性好处,而不会造成重大财产损失.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 可持续建筑 可持续建筑
背景情况:
- 传统的建筑材料,如沙子,是不可再生的.
- 农业副产品,如树灰 (EA) 作为可持续建筑材料组件具有潜力.
- 优化EA用于水泥复合材料需要仔细处理.
研究的目的:
- 在粒子大小重新分类 (ERA) 后,评估树灰 (EA) 作为砂中的部分沙子替代品.
- 评估ERA对新鲜,硬化和微结构砂性能的影响.
- 确定可持续砂生产的最佳替代水平.
主要方法:
- 将EA的颗粒大小重新分类以与沙子分布 (ERA) 相匹配.
- 用15%,30%和50%的ERA替代沙子制备砂混合物.
- 使用XRD,SEM,一致性,密度,吸收测试和压力强度分析进行表征.
主要成果:
- 埃拉表现出具有高高光度的晶体结构.
- 再分类减少了EA中的不良细材料.
- 带有ERA的砂显示空隙和水吸收增加,但在7天和28天保持了与对照样本相比较的压力强度.
- 在28天后,压力强度达到46.44MPa,50%的ERA替代.
结论:
- 重新分类的树灰 (ERA) 可以有效地作为砂中的部分沙子替代品.
- 对于对物业影响最小的可持续砂,建议使用15%和30%的ERA替代水平.
- 这种方法可以提高砂的可持续性,而不会影响性能.
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